Manufacturing method for carded woolen yarn

A manufacturing method for woolen yarn of fine count with materials which are used to make woolen yarn on combined system of woolen card and cotton system comprising the steps of:

• preparing dyed or raw materials by means of conventional woolen system,
• feeding said materials to the woolen card,
• condensing said materials into a web from a doffer of the woolen card,
• forming coiled sliver in a can to transfer to a drawing frame of the cotton system,
• drawing the sliver on said drawing frame,
• adjusting the spacing between two nipping rail pairs to get fibers having a more uniform length and longer mean length, with which the fibers can be drafted on a roving frame and ring frame,
• adjusting the spacing between roller pairs of main draft zone of the drawing frame for a first passage,
• getting a required length gradually through a second passage,
• producing roving on the roving frame with the sliver produced from the second passage of said drawing,
• using recessed rollers of the second pair only when the longest length of fibers is longer than 60 mm,
• using recessed rollers of said second pair,
• spinning yarn with the roving frame,
• re-adjusting the distance between pairs of said first and second rollers, and
• using top rollers of said second pair only when the longest length of fibers is shorter than 60 mm.